... spiral diary 1. pp,pvc leather cover, hard & soft cover 2. offset & flexo printing 3. spiral, wire-o & perfect binding Notebooks ... printing cover, vellum finish cover available.2. pp spiral bonding, wire-o bonding, glue bonding, perfect bonding, sewing bonding, stitching ... bonding available.3. wood-free paper, coated art paper C1S C2S, book paper, magazine paper, recycle paper ...